Sound Card for my 286 System
For my sound card, I plan to leverage previous work that I did for my 65816 system build. I will refactor the sound card to support my...
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rehsd
- Jun 20, 2022
- 1 min
Eater 8-bit CPU Emulator for my 65816 System
To practice my 65816 assembly, and refresh myself on Ben's 8-bit CPU... And an emulator running inside an emulator... 🙂 On my Windows...
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rehsd
- Jun 17, 2022
- 2 min
65816 System - June 2022 General Update
In January of this year, I decided to try to build a new system based on the 65816 processor. It has now been almost five months, and I...
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rehsd
- Jun 15, 2022
- 0 min
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rehsd
- Jun 12, 2022
- 1 min
480x320 Debug LCD for 65816 System
To enable more verbose debug logging at runtime, I have added a higher-resolution LCD. Communication from the 65816 is handled with SPI....
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rehsd
- May 30, 2022
- 1 min
65816 Sound Card Substantially Complete!
My sound card is now substantially complete, and I can continue working on system assembly code to better utilize it. I have the sound...
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rehsd
- May 14, 2022
- 2 min
65816 Sound Card: First Song Playback from SD Card (SPI) & Updated Output Schematic
I now have the onboard SD Card (SPI for communication) working on my sound card. I ended up going without the hardware shift registers...
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rehsd
- May 6, 2022
- 2 min
65816 Sound Card: First Song Playback from Onboard Media ROM
Continued from Sound Card 2.0 PCB Build (rehsdonline.com)... I now have playback working from the media ROM on the sound card....
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rehsd
- May 4, 2022
- 3 min
65816 Motherboard - Building Your Own
I have received several inquiries from others wondering about building their own version of my 65816 motherboard. If you're interested in...
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rehsd
- Apr 30, 2022
- 1 min
Emulator^2 -- Sound Card Emulator
Continuing with my 65816 Emulator series, my 65816 PC build is now to the point where an emulator for my sound card would be helpful. I...
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rehsd
- Apr 28, 2022
- 2 min
Sound Card 2.0 PCB Build
In this running post, I will share the buildout of my sound card for my 65816 PC. Having the PCB in hand, I can say this will be the...
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rehsd
- Apr 24, 2022
- 2 min
65816 Assembly Coding Series
As I'm learning and implementing assembly code for my 65816 PC, I'll post periodic updates here. I'm doing OK with the assembly so far,...
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rehsd
- Apr 22, 2022
- 2 min
65816 PC Build Update (April 2022)
Back in January, I decided to start building a 65816 "PC." Up to that point, I had built a 6502 system with basic elements of a PC. The...
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rehsd
- Apr 21, 2022
- 1 min
USB Mouse Add-in Card for My 65816
I'm working with what I have... I have a 65816 computer, and I want a USB mouse. I have a 6502 computer with USB mouse support. I have...
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rehsd
- Apr 20, 2022
- 2 min
Experimenting with Bus Resistors
As I have now found some nice stability with my 65816 system running at 14.16 MHz, I thought I would come back to bus resistors and see...
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rehsd
- Apr 16, 2022
- 3 min
Sound Card 2.0: Breadboard Build (running post)
I am working on the breadboard build of my Sound Card 2.0. I'll use this post for updates on my progress. I figure the breadboard build...
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rehsd
- Apr 15, 2022
- 1 min
ISA Slot Extension and Proto Board
To facilitate developing new circuits for my 65816 system, I have designed an extension for my bus, leveraging the ISA physical...
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rehsd
- Apr 15, 2022
- 1 min
LCD Add-In Card
With my 65816 system up and running, I can now start working on add-in cards. A simple one to start: an LCD. I designed the PCB to be...
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rehsd
- Apr 13, 2022
- 4 min
65816: Working to Improve Speeds
Now that I have my 65816 motherboard working, I would like to improve speeds. The symptom that I see (and would like to improve) is that...
246 views2 comments
rehsd
- Apr 9, 2022
- 5 min
Sound Card 2.0 for 65816 PC (maybe a little overboard, but I'm OK with that)
I'm getting close to having my 65816 PC updated with rev 1.1 PCBs (for the motherboard and video memory card). I have a plan for a USB...
437 views4 comments
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